Search found 5 matches

by jalex9
Sat Oct 02, 2010 7:20 pm
Forum: General Discussion
Topic: Getting isolated 12V from 12V
Replies: 9
Views: 2161

Re: Getting isolated 12V from 12V

Update: I ended up using a MJE2955T PNP transistor to solve my problem. I hooked the door/control to the base through a 1k resister to limit the current. Wired the yellow/door in the DVD player to the collector. Wired the 12v to the emmiter. Now when door/control completes the 12v circuit on the ba...
by jalex9
Fri Oct 01, 2010 12:24 pm
Forum: General Discussion
Topic: Getting isolated 12V from 12V
Replies: 9
Views: 2161

Re: Getting isolated 12V from 12V

From what I understand you have a 12V source going to the original dome light. An on switch that grounds the other side of the dome light and an auto switch that grounds the other side of the dome light when a door is opened. Correct? Yes. The dome light I removed had the 12v wired to one end of th...
by jalex9
Thu Sep 30, 2010 12:28 pm
Forum: General Discussion
Topic: Getting isolated 12V from 12V
Replies: 9
Views: 2161

Re: Getting isolated 12V from 12V

I was thinking that I just need a switch between 12v & yellow on the DVD player that is triggered when there is 12v between Vs & the door ground on the input. Which led me to think would a simple relay work? If I hooked up a solid state relay where the 12v to door/control closed the switch and tied ...
by jalex9
Thu Sep 30, 2010 7:37 am
Forum: General Discussion
Topic: Getting isolated 12V from 12V
Replies: 9
Views: 2161

Re: Getting isolated 12V from 12V

The door/control line is floating with door closed and goes to ground when the door is opened. I think I measured .7v between it and 12v with the door closed but I'm not positive I'm remembering correctly. So I am looking for a circuit that will trigger on the input going to ground and be able to pu...
by jalex9
Wed Sep 29, 2010 8:16 am
Forum: General Discussion
Topic: Getting isolated 12V from 12V
Replies: 9
Views: 2161

Getting isolated 12V from 12V

I bought an inexpensive Flip-Down DVD player for my Car. It replaces the dome light and mounts in it's place. The DVD player and clock on the unit work fine but the dome light isn't coming on with the door open. There is a momentary switch on the unit that will trigger the dome light on and off so t...